SICgrips: 2021
How to belay someone heavier than me with Petzl's Grigri - Quora
Multi-pitch rappelling with a single rope - Petzl USA
Don't pre-rig a rappel with a Grigri on top — Alpine Savvy
How to properly coil a 9.8mm climbing rope that is 60m long - Quora
Technical Tips Climbing Magazine, PDF, Knot
Double Rope Rapping with a GriGri.
Accidents in North American Climbing — News — The American Alpine Club
American Alpine Institute - Climbing Blog: February 2011
Rappelling with the GRIGRI - Petzl USA